Outgoing thread control for automatically replenishing looms



lJune 24, 1930. 1,768,502

oUTGoING THREAD coNTRoL FoR AUTOMATICALLY REPLENISHING Looms H. H.BURDETT 2 Sl'leetb-Sheet -o April 4, 1929 www mit ATTO/Nfy June 24,1930.

H. H. BuRDr-:TT

OUTGOING THREAD CONTROL FOR AUTOMATICALLY .REPLENISHING LOOMS Fi'ldApril '4, -1929 2 Sheets--SheecV 2 A TTOANEY Patented June 24, 1930Hennen H. BURDETT, or Herrmann MASSACHUSETTS, Assienon To DBAPERoonroitATIoiv,Y on HOPEDALE, MAssAoHUsnTTs, i -oonronATion' on MAINEoUTeoiNG THREAD oonTRoL ron `AUToivIATIonianY REPLENTSHING, LooiyisApplication inea Aprii 4, 1929. serial No. 352,445.

rihis invention relates-to filling replenishing looms and is moreparticularly directed to the means for controlling the outgoing fillingendor thread upon call for replenish- :i nient of filling.

, In looms of this general` type the outgoingfilling end'extends fromthecloth selvage to the shuttle eye and thence to the filling carrier4or bobbin in the shuttle.`V It has been found desirable in practice topart the old filling between'the ends ofthe shuttle and preferably at aypoint adjacent the shuttle eye whenfthe shuttle is properly boxed'. n Inthis connection also it is desirable'to removeY the filling end leadingto the cloth selvage so imperfect cloth, and various mechanisms havebeen devised for this purpose, among which .2U is that shown anddescribed inthe patent to Alfred E. Stafford, No. Y1,5,52,388,Sept. l,

'Sonie difficulty has been lexperienced yin properly locating orpositioning the thread 2f; to be parted adjacent the shuttle eyeby di'eason of the fact that the length ofV filling .ent-ers and leaves thereplenishing bor: in another important feature of the inventionAconsists in a thread positionerhaving a thread engaging portion kwhichis normally Linder the iniuence of means for retaining` :the threadengaging portion of the positioner if -retraotedor outside of theshuttle box, thereby i that it will not be carried into the'shed by theshuttle or the new filling and produce Fig. 7 is a '15, with a portionof thepsliuttle box broken avoiding cont-actof the shuttle therewith,and

following a-call for replenishment ofiilling, toinove the positioner yingportion may engage thefthread within the shuttle box. f

that its threadengag-A vThe inventiony and novel features thereof ibi)willk best be madeclear from the following Y description andaccompanying drawings]l,of one 'good-form thereof. t Y

`In the drawingsf.-

' Fig. l is a perspective viewof a'replenish-r ing shuttle boX of afilling replenishing loom liavingthe present invention associatedtherewith; y 1 ,Y

f Fig. 2 is an enlarged sectional side elevaform of thread parter; and

tion showing. one

thevthreavd positioner in its inactiver position duringy normal weavingoperations;

Fig. 3 is a sectional side elevation showing .the thread positioner ashaving performed its function and placed the thread in position for theaction of the thread parter; y Fig. 4C is a section onthe line fFig 5V;

Fig. 5 is a front elevation of a portion of the shuttle lbox having thepresent invention applied thereto; y y 1 f Fig; 6 is ankend viewklooking in the direc'- tion of the arrow of Fig. l5; f ,Y f

section on the line 7 7 of Fig.

away.- Y It has not been deemednecessaryherein to illustrate anddescribe the replenishing mechanism whereby the filling in the shuttleis changed from time to time, because the details of such mechanism formno essential lpart ofthe present invention andare now well understood inthe art. y

The lay lyonly apart of whichA is shown, may be of the usualconstruction, and at the filling replenishing end thereof 4it isprovided' -with the replenishing Yshuttle'box 2 in which the 'shuttle 3is located when replenishment 4ofl fill-,ing A isvto be effected, andasusual the shuttle 'hastheside delivery eye at its leadf Cil wir*

ing or right hand end of Fig. 1, from which the filling a is drawnduring the weaving operation. Y

The thread parter for parting the outgoing lling end may be of usualconstruction, since the details thereof are unimportant in connectionwith the present invention, but as herein illustrated the thread parterconsists of the two jaws or cutter members 4 and 5, one at least ofwhich is movable to cause the parter when open to part the thread whenthe members are closed. In the illustrated form of the parter there is axed member 4 and a movable member 5 which is pivotallyV connected withthe fixed member at 6 and has a pin 7 extending therefrom. at its frontend portion, such pin being utilized first to open the parter and thenlater to cause it to part the thread.

Thethread parter is shown as mounted upon a carrier or slide 8 whichupon call for replenishment of lling is moved rearwardly under thedictates of an arm 9 having a slot 10 which engages a pin 11 extendedfrom the carrier or slide.

Upon call for replenishment of filling,y the arm 9 moves the slide 8rearwardly and the trip 12 opens the parter into the general positionindicated in Fig. 2. When the parter is in its vrearward arting positionand the thread is engage between the members thereof the parter membersare closed in an appropriate manner to part the thread. In the presentinstance the parters are closed by the closing member 13 which isconnected to the transierrer so that on downward movement of thetransferrer the parter will be Y closed to part the thread. The detailsthus far described may be ofthe same general construction and operationas shown and more fully described in the Stafford patent abovementioned.

As usual in iilling replenishing looms where the outgoing filling is tobe parted between the ends of the shuttle or adjacent the shuttle eye,the front box plate 14 is provided with an'opening 15 through which theparter may pass to engage and cut the thread, and as usual the shuttle 2is provided with a longitudinal recess 16 in which the thread a restswhen the shuttle is in the replenish- It may be desirable to enlarge theopening 16 in the side of the shuttle adjacent the side delivery eye,but the character of opening 16 asshown `is suthcient in size toaccommodate the-thread and operation of the parter and positioner, aswill later appear. Y

'In accordance with the present invention the thread positioner has athread engaging portion which is normally retractedv from the shuttlebox and is caused to enter thel shuttle box when they shuttle is inposition 'ior replenishment, and engage and position the thread for theparting operation.

The thread positioner, in accordance with the presentinvention, ismounted on the shuttle box and preferably supported by the front wallthereof adjacent the opening in the wall through which the parter mayextend when it is positioned to part the iilling.

The iront wall or box plate of the shuttle box has an enlarged portion17 which forms a convenient means ior the thread positioner mounting,but any suitable supporting st-ructure on the shuttle box or front wallthereof may be employed.

As shown in the present instance of the invention the shuttle positioner18 is provided with a thread engaging portion 19 and is mounted forrotative movement through a train of mechanism comprising the shaft 20of the positioner having teeth 21 on a portion thereof which are engagedwith a pinion 22 mounted for rotative movement upon a supporting wall 23of the front box plate.

The mounting for the pinion 22 may be variously contrived, but as shownin the present instance the head end portion 24 of the pinion mountingextends through the pinion 22 and is threaded at 25 into the end portionof the elongated gear 26, the construction being such that should theelongated gear 26 be rotated it will act through the pinion 22 and theteeth 21 of the positioner, to cause a rotative movement of the latter.

Mounted above the elongated gear 26 is a plunger 27 having a series ofteeth 28 which are engaged with the teeth of the elongated pinion 26,the construction beingsuch that upon longitudinal movement of theplunger 27 the elongated pinion 26 will be actuated and transmit turningmovement to the thread positioner.

The plunger 27 as shown is mounted for longitudinal movement in anopening 29 liormed in the front box plate of the shuttle box and isunder the normal iniiuence of a spring 30 tending to move the plunger inits outward position, as indicated in Fig. 7, and a stop 31 on theplunger serves to limit its outward position.

From the construction thus far described it will be apparent that underthe normal action of the spring 3() the plunger will cause the threadpositioner to assume the position indicated in Fig. 7 with the threadengaging portion of the thread positioner retracted from the shuttlebox, a position the thread positioner occupies during normal weavingbetween replenishing operations.

Extending rearwardly from the parter carrier or slide 8 is a bunter 32the head portion 33 of which is adapted to engage with the outwardlyprojecting end of the plunger 27 when the bunter, on call forreplenishment of iilling, has been moved rearwardly with the partercarrier to position the parter for its thread cutting operation as thelay moves `frontwardly. The shuttle to be replenished will7 at thistime, be in the replenishing shuttle box and the action of the bunterupon the plunger serves to move the thread positioner to place itsthread engaging portion or hook 19 within the shuttle box to engage andposition the thread.V

After replenishment when the lay moves towards its back position,- theend of the plunger'27 will beV freed from the bunter 32 with the lresultthat the normally acting spring 30 Vwill move the plunger to its outerposition and' pei-force move the thread positioner to with- Vdraw thethread engaging portionl thereof from the shuttle box so that duringsubsequent weaving it will not be engaged by the shuttle as the -layenters and leaves the box.

It will be noted from the'construction shown and described as one goodVpractical form of the present invention that the thread positioner islocated adjacent the opening 15 in the front box plate which' is inproximity to the shuttle eye when the shuttle is in the replenishing boxThe eifect of this is that the thread engaging portion of the threadpositioner will hold the thread adjacent the shuttle eye for the actionof the thread parter. y f Y l l rllhe thread positionr shownV as onegood practical form lof the invention, is mounted for rotative movement,and' its thread engaging portion or hool; 1'9 passesinto theshuttle boxunder the dictates of the bunter and lifts the thread, which isusuallyliable to fall below the line of action of the parter. 'AS thethread positioner is turned as stated' its thread-engaging 'portion orhook- 19 will carry the thread frontw'ardly to someextent, as indicatedin Fig. 3, wherein it will be noted that the thread a has been carriedbetween the two members of thethread-parter. Thus, not only does thethread positioner engage' iand position the thread in theshuttle box,

that when the thread has been parted and the end leading to the shuttleeye has been freed,

vthe endV leading to the cloth selvage willV be held by the parterclamp-and consequently bev moved frontwardlyl about ythe cloth selvageas a center, as fthe par-ter moves frontwardlyy Vto its'normal`position.

To enable the end of the'thread a leading to the'cloth selvage tobethusfswung frontv war'dlyont 'of the shuttle box,` thefront box plateis provided with an inclined groove 35 leading to the top of the shuttlebox as at 36,

so that as the end of the thread leading 'to the ythe operating into theshed.

-skill'of thek weaving artisan,

shuttle box to l engage and position the `clothselvage is movedfrontwardly by the clamp7 the threadend will ridethrough the inclinedslot or opening 35 and be withdrawn frontwardly over the top of theshuttle box.

Y' AsV is well understood the ends of the 'fillling or threads to betransferred to the shuttle during replenishment are secured at a `fixedpoint and when the fresh filling is placed in. the shuttle and thelatter is picked, this iilling end is liable to be caught by some partin the shuttle box and eventually be carried into' the shed. To preventthis objectionable condition the front platefof the shuttle box isprovided'with an'arm- 37 which extends frontv' wardly and has adownwardly extending hook en d portion 38 so thatas the new filling endsrest upon the frontwardly extendin'gportion 37of the arm and dropslightly as the lay goes back, they will be engaged by th'e hooked endportion 38 of the arm and retained from parts and :from being carriedThe arm 37 may be secured to the enlarge- `ment 17 of the front boxplate Vby a screw or other fastening means 39'.

The primary' purpose of theV thread positioner, as hereinbefore stated,is to position the thread adjacent thefshuttleeye for the action of thethread parter, and tofinsure that the thread be parted on replenishmentoffilling. Should the thread engagingrp'ortion of the thread positioner,however,be sharpened, j it Ywould serve to part the iilling, and in suchease ,the parted end leadingvto the. cloth' selvage would bev withdrawnfrontwardly by e the thread clamp as thelay goes back.k .y

The train of mechanism described for norl mallyholding thethreadengaging portion of' the threadparter retracted from the shut- Y tle boxduring weaving and between filling replenishment operations, and forprojecting the filling engaging portion of the positioner into theshuttle box when'lilling is to-.be replenished, forms afgood `practicaloonstrucl;

tion, but, obviously, the detailsof such mechanismr mayv be variedwithin-the yordinary i What is claimed is: f Y f 1. In a fillingreplenishing loom, thc combination of a thread parter to act uponandpart. the outgoing thread between theJv ends of a shuttle when in thereplenishing Vshuttle I box,athread positioner mounted ontthe-shutj f ltle box and having Va thread engaging portion, and meansrenderededective on call for replenishment of filling to movev thethread l engaging yportion of the positioner intoV the thread for theaction of the partefr. Y Y 2.V In a vfilling replenishingloom,the com--struction of a thread partei' to act upon and partthe outgoingthread'between vthe ends of a shuttle when in the replenishing'shuttlebox,.-a thread positioner mounted for movement on the shuttle box andhaving a thread engaging portion normally outside of the shuttle box,and means rendered edective on call for replenishment of filling toproject the thread engaging portion of the positioner into the shuttlebox to engage and position the thread for the action of the parter.

3. In a filling replenishing loom, the combination of a thread partermounted to act upon and part the outgoing thread between the ends of theshuttle when in the shuttle box, a thread positioner mounted on theshuttle box and having a thread enga-ging portion, and meansy renderededective on call for replenishment of filling to move the threadengaging portion of the positioner into the `shuttle box as the laymoves frontwardly to position the outgoing thread for the action of theparter.

4. In a filling replenishing loom, the combination of a thread parter toact upon and part the outgoing thread adjacent the shuttle eye, a threadpositioner mounted on the shuttle box and having a thread engagingportion adjacent the shuttle veye when the shuttle is boxed, and meansrendered effective to move the shuttle positioner as the lay beats upafter a call for replenishment of filling to move the thread engagingportion of the thread positioner into the shuttle box `to engage andposition the thread for the ac- Y tion of the parter.

5. In a filling replenishing loom, the combination of a thread parter toact upon and part the outgoing thread adjacent the shuttle eye, a threadpositioner mounted on the shuttle box .for movement relative thereto andhaving a thread engaging portion adjacent the shuttle eye when theshuttle is boxed, means rendered effective to move the thread positioneron the shuttle box as the lay beats up afterl a call for replenishmentof filling to project the thread engaging portion of the threadpositioner into the shuttle box to engage and position the thread forthe action of the parter, and means for withdrawing the thread engagingportion of the positioner 'from the shuttle box after the thread hasbeen parted. Y'

Y6. In a filling replenishing loom,the combination of the replenishingshuttle box having a front box plate provided with an openingadjacent'the eye of a boxed shuttle, a

ing weaving, and means rendered operativeV bination of the replenishingshuttle box havking a front box plate provide-d with an opening adjacentthe eye of a boxed shuttle, a thread parter to act upon and part theoutgoing thread adjacent the shuttle eye, a thread positioner having athread engaging portion adjacent the eye of a boxed shuttle and normallyoutside of the shuttle box, means for actuating the thread positioner tomove the thread engaging portion of the positioner into the shuttle boxto position the thread for the action of" the parter, and means forwithdrawing t-he thread engaging portion of the positioner from theshuttle box to prevent contact of the shuttle therewith during weaving.

8. In a filling replenishing loom, the combination of the replenishingshuttle box having a front box plate provided with an opening adjacentthe eye of a boxed shuttle, a thread parter vto act upon and part theoutgoing thread adjacent the shuttle eye, a thread positioner mounted onthe shuttle box and having a thread engaging portion normally outside'of the shuttle box adjacent the eye of a boxed shuttle, and means foractuating the thread-positioner to move the thread engaging portion ofthe positioner into the shuttle box to position the thread for theaction of the parter.

9. In a filling replenishing loom, the combination ofl the replenishingshuttle box having an opening adjacent the eye of a boxed shuttle, athread parter adapted to enter said opening and part the outgoing threadafter call for replenishment of filling, a thread positioner mounted onthe front wall of the shuttle box and having a thread engaging portion,means normally acting to maintain the thread engaging portion outsidethe shut- -tle box to prevent Contact by the shuttle, and

means acting after call for replenishment for moving the thread engagingportion of the positioner into the shuttle box to position the threadfor the action of the thread parter.

10. In a filling replenishing loom, the combination of a thread parterto part the outgoing thread adjacent the eye of a shuttle in thereplenishing shuttle box, a thread positioner having a thread engagingportion normally held outside of the shuttle box during weaving, andmeans rendered effective upon call for replenishment lof filling to movethe thread engaging portion into the shuttle box and in a plane toposition the outgoing thread Vfor the action of the parter.

11. In a filling replenishing loom, the combination of a thread parterto part the outgoingy thread adjacent the eye of a shuttle in thereplenishing shuttle box, a thread positioner having a'thread engagingportion, means normally effective for holding the thread engagingportion out of the shuttle box and the path of the shuttle betweenreplenishing operations, and means rendered effective upon call forreplenishment of filling to move the thread engaging portion into theshuttle box and in a plane to position the outgoing thread for theaction of the parter.

l2. In a filling replenishing loom, the combination of the replenishingshuttle box having a front box plate provided with an opening, a threadengaging member mounted on the shuttle box and having a part to entersaid opening and engage the outgoing thread, means normally effectiveupon the engaging member to hold said part outfof the path of theshuttle, and means effective upon Call for replenishment of filling toaotuate the thread engaging member to cause said part thereof to enterthey shuttle box and engage the outgoing thread.

13. In a filling replenishing loom, the combination of the replenishingshuttle box having a front box plate provided with an opening, a threadengaging member mounted on the shuttle box and having a part ofhookformation to enter said opening and engage the outgoing thread,means normally effective upon the engaging member to hold said part outof the path of the shuttle, and means effective upon call forreplenishment of filling to actuate the thread engaging member to causesaid part thereof to enter the shuttle box and engage the outgoingthread.

14. In a filling replenishing loom, the oombination of the replenishingshuttle box having an opening in its front wall, a thread engagingmember mounted for rotative movement on the shuttle box and having athread engaging hook adapted to enter the opening in the front wall ofthe shuttle box, means normally tending to retain the thread engaginghook from entering the shuttle box, and means positioned to 'turn thethread engaging member when filling is to be replenished and project thethread engaging hook into the shuttle box to engage the thread.

15. In a filling replenishing loom, the oombination of the lay having areplenishing shuttle box, a thread parter to part the outgoing thread ata point between the ends of the boxed shuttle, a thread positionermounted on the lay and having a thread engaging portion normally outsideof the shuttle box, and means rendered effective on call forreplenishment of filling to operate the thread positioner and Cause thethread engaging portion thereof to engage the outgoing thread in theshuttle box and Withdraw it from the shuttle box into a position for theaction of the thread parter.

16. In a filling replenishing loom, the combination of the replenishingshuttle box having an opening in its front wall, a thread engagingmember mounted for rotative movement on the shuttle box and having athread engaging hook adapted to enter the opening in the front wall ofthe shuttle box, means normallyftending to retain the thread engaginghook out of the shuttle box, means positioned to turn the threadengaging member when filling is to be replenished and project the threadengaging hook into the shuttle box.

to engage the thread, and a threadv clamp for withdrawing the end of thethread leading to

